Finding the Fourth Proportional to 2,587,427.67, 3,862,948.72 and 1,977,021.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587,427.67 : 3,862,948.72 = 1,977,021.39 : x
2. Step 2: Convert to fraction form
   2,587,427.67/3,862,948.72 = 1,977,021.39/x
3. Step 3: Cross multiply
   2,587,427.67x = 3,862,948.72 × 1,977,021.39
4. Step 4: Simplify right side
   2,587,427.67x = 7,637,132,247,913.12
5. Step 5: Solve for x
   x = 7,637,132,247,913.12/2,587,427.67
6. Step 6: Final answer
   x = 2,951,631.20